Results 141 to 150 of about 333,895 (294)

Multiband antenna design method using predefined shapes and image segmentation techniques for IoT applications

Scientific Reports
The development of the internet of things necessitates more compact electronic products. This paper proposes a novel approach: designing a predefined shape to function as a antenna without changing its visual appearance.
Fan Jiang, Zhen Zhang, Bo Liu, Weihua Yu
doaj   +1 more source

Interference analysis of broadband space and terrestrial fixed radio communications systems in the frequency range 12 to 30 GHz [PDF]

This thesis presents research into the principles of spectrum sharing analysis methods developed for investigating implications of interference from Nongeostationary Fixed Satellite Service (NGSO FSS) systems into Geostationary Fixed Satellite Service
Kirtay, Selçuk
core  

Crystallization‐Driven Helical Conjugated Polymer Nanowires for Circularly Polarized Light‐Addressable Ferroelectric Physical Unclonable Functions

Small, EarlyView.
Supramolecular helicity meets ferroelectricity: P3HT‐b‐PMMA helical nanowires enable handedness‐specific modulation of remanent polarization in P(VDF‐TrFE) hybrids. This platform demonstrates the first CPL‐addressable ferroelectric PUF, translating molecular chirality into secure digital authentication.
Jung‐Min Ji, Minju Park, Junyeon Yoon, Jun Ho Hwang, Min Seok Kim, Ji Young Jo, Young Min Song, Eunji Lee   +7 more
wiley   +1 more source

Tailoring Zn2+ Solvation for Dendrite‐Free and High‐Efficiency Aqueous Zinc Batteries

Small, EarlyView.
A ternary water–methanol–dimethyl sulfoxide hybrid electrolyte reconstructs the Zn2+ solvation sheath by reducing free water activity and promoting coordinated solvent interactions. The regulated interfacial chemistry suppresses parasitic reactions and enables dense, uniform zinc deposition, resulting in enhanced reversibility and long‐term cycling ...
Siyanand Kumar Chaudhary, Sheng‐Chiang Yang, Yu Chun Huang, Yosef Nikodimos, Teklay Mezgebe Hagos, Gao‐Jhih Liang, Tripti Agnihotri, Bereket Woldegbreal Taklu, Ayenew Meniber Mihiretu, Teshome Gonfa Hordofa, Liyew Yizengaw, Tsung‐I. Yeh, Baru Debtera Bejena, She‐Huang Wu, Wei‐Nien Su, Chun‐Chen Yang, Bing Joe Hwang   +16 more
wiley   +1 more source

Eutectic Mixtures of Inorganic and Organic Adamantane‐Type Compounds With Strongly Nonlinear Optical Properties

Small, EarlyView.
ABSTRACT We report a new concept to lower the melting temperature (Tm) of inorganic‐organic hybrid adamantane‐based cluster compounds by forming unprecedented eutectic cluster mixtures with organic adamantane derivatives. Blending of clusters of the type [(p‐MeC6H4Si(CH2SnPhE)3] (E = S, Se, Te) with (3‐F‐4‐Me‐C6H3)3Ad, (3‐F‐4‐Me‐Ph)4Ad, and (4‐MeO‐C6H4)
Irán Rojas León, Jan Christmann, Saravanan Gowrisankar, Sebastian Schwan, Anton S. Nizovtsev, Ferdinand Ziese, Jürgen Belz, Johannes Haust, Jihed Ayari, Kerstin Volz, Nils W. Rosemann, Simone Sanna, Doreen Mollenhauer, Klaus Jurkschat, Peter R. Schreiner, Stefanie Dehnen   +15 more
wiley   +1 more source

Efficient MMIC Power Amplifier Implementations for Applications Beyond 100 GHz [Elektronisk resurs]

The rapid increase in worldwide wireless data traffic underscores the need for advancements in wireless communication infrastructure. Millimeter Wave (mm-wave) frequencies provide abundant and less crowded spectrum resources for these networks.
Kaval, Göksu,
core  

Feeding Practices and Welfare of Zoo‐Housed Giraffes (Giraffa camelopardalis) on a Global Scale

Zoo Biology, EarlyView.
We collected feeding and stereotypy information on 702 giraffes from 146 zoos from all over the world. Less appropriate diets were linked to more oral stereotypies. ABSTRACT Since giraffe feeding practices have only been reported for European and US facilities, this study aimed to achieve a comprehensive overview of the current giraffe feeding ...
Rosalyn Pardave, Gernot Osthoff, Marcus Clauss, Francois Deacon   +3 more
wiley   +1 more source

Ozone‐driven degradation of sex pheromone in Plutella xylostella: Implications for reproductive communication and mating success

Insect Science, EarlyView.
In this study, we examined whether realistic ozone concentrations can interfere with sexual communication in the insect pest Plutella xylostella, the diamondback moth. Ozone exposure caused a degradation of pheromone components, leading to significant changes in blend composition and component ratios.
Francesco Sorrentino, Delia M. Pinto‐Zevallos, Oksana Skaldina, James D. Blande   +3 more
wiley   +1 more source

Mind(the)Plant: An expandable multimodal facility for the integrated characterization of plant behaviour

Methods in Ecology and Evolution, EarlyView.
Abstract Understanding plant behaviour requires the integration of multiple phenotypic and physiological signals measured over time under controlled conditions. However, different plant signals are typically studied using separate experimental setups, limiting temporal alignment and integrative analyses.
Valentina Simonetti, Bianca Bonato, Silvia Guerra, Sara Avesani, Luca Semenzato, Maria Bulgheroni, Gabriela Gjinaj, Laura Ravazzolo, Marco Dadda, Umberto Castiello   +9 more
wiley   +1 more source

Design and development of a graphene-based MIMO antenna for smart multi-band sub-6 GHz 5G wearable communication applications. [PDF]

Sci Rep
Al-Gburi AJA, Mohammed NJ, Saeidi T, Nurhayati N, Ismail MM.   +4 more
europepmc   +1 more source